.TH "PAPI_perror" 3 "Tue Jan 15 2013" "Version 5.1.0.2" "PAPI" \" -*- nroff -*-
.ad l
.nh
.SH NAME
PAPI_perror \- 
.PP
Produces a string on standard error, describing the last library error.  

.SH SYNOPSIS
.br
.PP
.SH "Detailed Description"
.PP 
\fBC Interface:\fP
.RS 4
#include <\fBpapi.h\fP> 
.br
 void PAPI_perror( char *s );
.RE
.PP
\fBParameters:\fP
.RS 4
\fIs\fP -- Optional message to print before the string describing the last error message.
.RE
.PP
The routine PAPI_perror() produces a message on the standard error output, describing the last error encountered during a call to PAPI. If s is not NULL, s is printed, followed by a colon and a space. Then the error message and a new-line are printed.
.PP
\fBExample:\fP
.RS 4

.PP
.nf
  int ret;
  int EventSet = PAPI_NULL;
  int native = 0x0;

  ret = PAPI_create_eventset(&EventSet);
  if (ret != PAPI_OK)
  {
     fprintf(stderr, \'PAPI error %d: %s\\n\', ret, PAPI_strerror(retval));
     exit(1);
  }
  // Add Total Instructions Executed to our EventSet
  ret = PAPI_add_event(EventSet, PAPI_TOT_INS);
  if (ret != PAPI_OK)
  {
     PAPI_perror( 'PAPI_add_event' );
     exit(1);
  }
  // Start counting
  ret = PAPI_start(EventSet);
  if (ret != PAPI_OK) handle_error(ret);

.fi
.PP
.RE
.PP
\fBSee also:\fP
.RS 4
\fBPAPI_strerror\fP 
.RE
.PP


.SH "Author"
.PP 
Generated automatically by Doxygen for PAPI from the source code.
